$433 Cheap American Airlines flights St. Louis (STL) to Tokyo (NRT)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap American Airlines return flights from $862 from STL to NRT. Affordable one-way fares from $433 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

American Airlines flights to Tokyo are typically cheaper in the quieter months of January and February. Whether you’re after a one-way or round-trip ticket, you could find a better deal then.

Look for American Airlines flights from STL to NRT about one month before you want to go. The cheapest time to reserve an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Select our “Nonstop” filter when looking for direct American Airlines flights from STL to NRT. You can also compare other carriers offering the same direct trip.

To find the earliest departure from STL to NRT with American Airlines, filter your search by “Early Morning” and “Morning.” Choosing an early flight generally means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Narita Intl. Airport (NRT) is the primary Tokyo gateway for American Airlines flights from Lambert-St. Louis Intl. Airport (STL).

You can usually cancel or change your flight, although additional fees may apply if you made your booking more than 24 hours ago. Prefer to keep your options open? Use Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you have to revise your plans. To make modifications, visit “Trips,” select your flight and click on “Manage Booking” for more details.